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Add touch_file() utility function

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This commit is contained in:
Andrew Ayer
2014-06-22 15:14:19 -07:00
parent 38b43a4415
commit e6bb66b93a
3 changed files with 29 additions and 0 deletions
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9
util-unix.cpp
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@@ -31,7 +31,9 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <errno.h>
#include <utime.h>
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
@@ -274,6 +276,13 @@ bool successful_exit (int status)
return status != -1 && WIFEXITED(status) && WEXITSTATUS(status) == 0;
}
void touch_file (const std::string& filename)
{
if (utimes(filename.c_str(), NULL) == -1) {
throw System_error("utimes", "", errno);
}
}
static void init_std_streams_platform ()
{
}

19
util-win32.cpp
View File

@@ -320,6 +320,25 @@ bool successful_exit (int status)
return status == 0;
}
void touch_file (const std::string& filename)
{
HANDLE fh = CreateFileA(filename.c_str(), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (fh == INVALID_HANDLE_VALUE) {
throw System_error("CreateFileA", filename, GetLastError());
}
SYSTEMTIME system_time;
GetSystemTime(&system_time);
FILETIME file_time;
SystemTimeToFileTime(&system_time, &file_time);
if (!SetFileTime(fh, NULL, NULL, &file_time)) {
DWORD error = GetLastError();
CloseHandle(fh);
throw System_error("SetFileTime", filename, error);
}
CloseHandle(fh);
}
static void init_std_streams_platform ()
{
_setmode(_fileno(stdin), _O_BINARY);

1
util.hpp
View File

@@ -64,6 +64,7 @@ int exec_command (const std::vector<std::string>&);
int exec_command (const std::vector<std::string>&, std::ostream& output);
int exec_command_with_input (const std::vector<std::string>&, const char* p, size_t len);
bool successful_exit (int status);
void touch_file (const std::string&);
std::string escape_shell_arg (const std::string&);
uint32_t load_be32 (const unsigned char*);
void store_be32 (unsigned char*, uint32_t);